Answer:
a) 2x+y=11=> 2×2+7=11
b) 1/2x-5y=8=> (1/2×36)-(5×2)=8
x = -11/7
x = 11/7
Step-by-step explanation:
49x² - 121
Factor
(7x + 11)(7x - 11)
roots
The answer is 10
Answer: 1.33 kg
Answer: 84 mm is MAYBE the answer.
